Sarah added: “You can always deflect the situation by reminding yourself that you aren’t the one with the spouse, and that is very true, but at the end of the day it is a very sticky situation to get involved in.

"It’s best to steer well clear of extra marital affairs, for your own sake as well as theirs.

"After all, how would you feel if you were married and your husband or wife was in bed with somebody else?”

The survery was conducted by UK online pharmacy company UKMedix.com and questioned 2391 men and women, who were all 18 or older, single and sexually active.